The stairway leads down from the hallway in front of the bathroom ... heading towards the front of the house.
 
 
 

The basement is a bit smaller than the main floor: the space underneath the living room is only crawlspace.  These shots are of the front half of the basement, with storage space, laundry and "physical plant".
 
 
 

These shots complete the basement looking toward the back of the house.  The door up to the back yard is on the left, next to the groovy old chest freezer, and to the right is the entrance to the infamous "Bonus Room".  We'll get to the latter in a second.  But first, immediately in the missing center of the images, and attached to the brick chimney ...
 
 

... is that a home furnace, or the boiler from the Andrea Doria?  It's an oil furnace now, but apparently converted from coal.  The pump and jet are cemented into the old coal-loading door, which still has its hinge mounts, and there's no way this thing came into any of the openings in the house.  The house was either built around it, or the furnace was assembled in the basement.  A more modern upgrade may be in order.
 
 
 

Apparently a repository for the pink paint that was left after they finished the bathroom, this stunning feature of the property was actually touted in the real estate listing as a "Bonus Room" in the partially finished basement.  The only thing required to finish this room, I would suggest, is the same sledge hammer and Sawzall used on the bathroom.  No matter, the basement ceilings are high, and there are plenty of plans for here, as well: TV room, train room, half bath, darkroom ... but these are farther down the list than the upstairs and outdoor plans.

If I'm not at work over the next 5 years or so, you'll know why.